function foo(){var njf1=_frm(this,arguments);nj:while(1){switch(njf1.cp){case 0:njf1.cp=1;case 1:if((njf1.rv1=
  bar(njf1))==NJSUS){return njf1.fh;}njf1.cp=2;case 2:if((njf1.rv2=
  baz(njf1))==NJSUS){return njf1.fh;}
  doSomething();break nj;}}}
